3493606729 has 2 divisors, whose sum is σ = 3493606730. Its totient is φ = 3493606728.

The previous prime is 3493606691. The next prime is 3493606747. The reversal of 3493606729 is 9276063943.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3266351104 + 227255625 = 57152^2 + 15075^2 .

It is a cyclic number.

It is not a de Polignac number, because 3493606729 - 2²¹ = 3491509577 is a prime.

It is not a weakly prime, because it can be changed into another prime (3493606769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1746803364 + 1746803365.

It is an arithmetic number, because the mean of its divisors is an integer number (1746803365).

Almost surely, 2^3493606729 is an apocalyptic number.

It is an amenable number.

3493606729 is a deficient number, since it is larger than the sum of its proper divisors (1).

3493606729 is an equidigital number, since it uses as much as digits as its factorization.

3493606729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1469664, while the sum is 49.

The square root of 3493606729 is about 59106.7401317312. The cubic root of 3493606729 is about 1517.3694588466.

The spelling of 3493606729 in words is "three billion, four hundred ninety-three million, six hundred six thousand, seven hundred twenty-nine".